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Cheap flights from Helena to Buenos Aires from $571

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Helena to Buenos Aires departing on 11/8. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Helena to Buenos Aires

Cheap round-trip flights

Delta Logo
5:35 am - 7:20 amHLN-EZE
21h 45m2 stops
Delta Logo
10:25 pm - 12:27 pmEZE-HLN
42h 02m2 stops
$1,304Delta
Find Deal
Tue, Jan 13 - Fri, Jan 30
United Airlines Logo
6:15 am - 9:20 amHLN-EZE
23h 05m2 stops
United Airlines Logo
11:55 pm - 9:26 pmEZE-HLN
25h 31m2 stops
$1,330United Airlines
Find Deal
Mon, Jan 12 - Fri, Jan 30
Delta Logo
1:06 pm - 6:05 amHLN-EZE
36h 59m2 stops
Delta Logo
8:00 am - 10:30 pmEZE-HLN
18h 30m2 stops
$1,465Delta
Find Deal
Mon, Dec 8 - Fri, Dec 12
Delta Logo
5:30 am - 10:15 amHLN-EZE
24h 45m2 stops
Delta Logo
10:25 pm - 10:30 pmEZE-HLN
28h 05m2 stops
$1,470Delta
Find Deal
Mon, Dec 8 - Fri, Dec 12
United Airlines Logo
2:44 pm - 8:00 amHLN-EZE
38h 16m2 stops
United Airlines Logo
9:00 pm - 9:00 pmEZE-HLN
27h 00m2 stops
$1,542United Airlines
Find Deal
Tue, Oct 14 - Tue, Oct 21
Delta Logo
5:35 am - 7:20 amHLN-EZE
21h 45m2 stops
Delta Logo
11:55 pm - 10:38 pmEZE-HLN
26h 43m2 stops
$5,128Delta
Find Deal
Wed, Jan 14 - Sat, Jan 31

Delta flights from Helena to Buenos Aires Ministro Pistarini Airport

Our best Delta deals on Helena to Buenos Aires Ministro Pistarini Airport flight tickets
Delta
Jan 13
HLN5:35 amHelena
21h 45m
2 stops
EZE7:20 amBuenos Aires Ministro Pistarini
Jan 30
EZE10:25 pmBuenos Aires Ministro Pistarini
42h 02m
2 stops
HLN12:27 pmHelena
$1,304
Find similar
Delta
Dec 8
HLN1:06 pmHelena
36h 59m
2 stops
EZE6:05 amBuenos Aires Ministro Pistarini
Dec 12
EZE8:00 amBuenos Aires Ministro Pistarini
18h 30m
2 stops
HLN10:30 pmHelena
$1,465
Find similar
Delta
Dec 8
HLN5:30 amHelena
24h 45m
2 stops
EZE10:15 amBuenos Aires Ministro Pistarini
Dec 12
EZE10:25 pmBuenos Aires Ministro Pistarini
28h 05m
2 stops
HLN10:30 pmHelena
$1,470
Find similar

United Airlines flights from Helena to Buenos Aires Ministro Pistarini Airport

Our best United Airlines deals on Helena to Buenos Aires Ministro Pistarini Airport flight tickets
United Airlines
Jan 12
HLN6:15 amHelena
23h 05m
2 stops
EZE9:20 amBuenos Aires Ministro Pistarini
Jan 30
EZE11:55 pmBuenos Aires Ministro Pistarini
25h 31m
2 stops
HLN9:26 pmHelena
$1,330
Find similar
United Airlines
Oct 14
HLN2:44 pmHelena
38h 16m
2 stops
EZE8:00 amBuenos Aires Ministro Pistarini
Oct 21
EZE9:00 pmBuenos Aires Ministro Pistarini
27h 00m
2 stops
HLN9:00 pmHelena
$1,542
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Helena to Buenos Aires Ministro Pistarini Airport that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated September 17, 2025.
Use the filters below to find and compare flights from Helena to Buenos Aires Ministro Pistarini Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

HelenaBuenos Aires

HLN - EZE

HLNEZE

Helena

Tue 1/13

5:35 am-7:20 am

2 stops21h 45m

Buenos Aires Ministro Pistarini

Fri 1/30

10:25 pm-12:27 pm

2 stops42h 02m

$1,304

HelenaBuenos Aires

HLN - EZE

HLNEZE

Helena

Mon 1/12

6:15 am-9:20 am

2 stops23h 05m

Buenos Aires Ministro Pistarini

Fri 1/30

11:55 pm-9:26 pm

2 stops25h 31m

$1,330

HelenaBuenos Aires

HLN - EZE

HLNEZE

Helena

Mon 12/8

1:06 pm-6:05 am

2 stops36h 59m

Buenos Aires Ministro Pistarini

Fri 12/12

8:00 am-10:30 pm

2 stops18h 30m

$1,465

HelenaBuenos Aires

HLN - EZE

HLNEZE

Helena

Mon 12/8

5:30 am-10:15 am

2 stops24h 45m

Buenos Aires Ministro Pistarini

Fri 12/12

10:25 pm-10:30 pm

2 stops28h 05m

$1,470

HelenaBuenos Aires

HLN - EZE

HLNEZE

Helena

Tue 10/14

2:44 pm-8:00 am

2 stops38h 16m

Buenos Aires Ministro Pistarini

Tue 10/21

9:00 pm-9:00 pm

2 stops27h 00m

$1,542

HelenaBuenos Aires

HLN - EZE

HLNEZE

Helena

Wed 1/14

5:35 am-7:20 am

2 stops21h 45m

Buenos Aires Ministro Pistarini

Sat 1/31

11:55 pm-10:38 pm

2 stops26h 43m

$5,128

HelenaBuenos Aires

HLN - EZE

HLNEZE

Helena

Sat 11/8

6:13 pm-6:43 pm

3 stops44h 30m

$571

HelenaBuenos Aires

HLN - EZE

HLNEZE

Helena

Sat 11/8

6:40 am-7:20 am

2 stops20h 40m

$688

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to Buenos Aires from

How to get the cheapest flight ticket from Helena to Buenos Aires Ministro Pistarini Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from Helena to Buenos Aires Ministro Pistarini?

United Airlines is the most popular carrier operating from Helena to Buenos Aires Ministro Pistarini

When to book flights from Helena to Buenos Aires Ministro Pistarini Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Helena to Buenos Aires Ministro Pistarini Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Helena to Buenos Aires Ministro Pistarini Airport (HLN to EZE) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Helena to Buenos Aires Ministro Pistarini Airport

Direct flights

None
There are no direct flights from Helena to Buenos Aires Ministro Pistarini Airport. There are no popular flight routes from Helena to Buenos Aires Ministro Pistarini Airport.
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  • How far is Helena to Buenos Aires Ministro Pistarini by plane?

    The distance between Helena and Buenos Aires Ministro Pistarini is about 6528.1 mi. A reasonable flight in good conditions will take 21h 45m.

  • When did momondo last update prices for flights from Helena Airport to Buenos Aires Ministro Pistarini Airport?

    Prices for flights from Helena Airport to Buenos Aires Ministro Pistarini Airport were last updated today.

  • How old do you have to be to fly from Helena Airport to Buenos Aires Ministro Pistarini Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Helena Airport to Buenos Aires Ministro Pistarini Airport.

  • What documentation or ID do you need to fly to Buenos Aires Ministro Pistarini Airport?

    The travel and health documents required for your trip to Buenos Aires Ministro Pistarini Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Buenos Aires Ministro Pistarini Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Why use momondo?

Why should I use momondo to find a flight deal from Helena to Buenos Aires?

Finding the right flight to Buenos Aires from Helena is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Buenos Aires quick and easy, saving you time and money.

Can I find flights from Helena to Buenos Aires with flexible booking policies on momondo?

All flight searches from Helena to Buenos Aires on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Helena to Buenos Aires?

momondo helps you find the best flight between Helena and Buenos Aires by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Helena to Buenos Aires right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Buenos Aires from Helena. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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